The rich set of Cisco IOS® Software features available in the Cisco AS5400 Series enables ISPs and enterprise network managers to meet traditional dial-in needs, including Internetwork Packet Exchange (IPX) and AppleTalk, while supporting the migration to new universal port services. The Cisco AS5400 Series supports widely deployed routing protocols, including those generally found in high-end access servers and routers: Border Gateway Protocol Version 4 (BGPv4), Open Shortest Path First (OSPF), Enhanced Interior Gateway Routing Protocol (EIGRP), and Intermediate System-to-Intermediate System (IS-IS).

Cisco customers worldwide have proven that Cisco AS5000 universal gateways provide the flexibility, scale, reliability, and suite of services required to meet market demands. By providing the industry's broadest family of access server products with universal port DSPs, Cisco makes it easy for customers to select the right starting point for a phased rollout based on revenue generation, without compromising future capabilities. Complemented by the industry's highest-rated service and support, Cisco can also provide assistance with startup, maintenance, and marketing tasks, as well as advanced and custom solutions.